Oil-burner.



Nol 855,857. `PMJJEJTED JUNE 4, 1907.

G. LARSBN.

OIL BURNER.

PPLIoATxoH FILED JAN. ze, 1907.

Unirse sfrnrns PATENT OFFICE.

OlL-URNER.

Specification of Letters Patent.

Patented .Tune 4, 1907.

Application nu January 26,1907. serai No. 354.303.

Be it known that I, GEORGE LAnsEN, a citizen of the United States, residing at San Leandro, in the county of Alameda and State of California, have invented new and useful Improvements in Oil Burners, of which the following is a specification. v

My invention relates to hydrocarbon burners, and especially to oil burners for use in forges and furnaces of all kinds. Its object is to provide a simple, cheap, practical burner for burning crudehoil or distillate, which will produce perfect combustion and give a colorless blue llamo `of comparatively large volurne. ...l-s

The novelty c'fthis invention resides in certain peculiarities of construction and combination of parts which will be set orth here- "ijnafter and claimed, having reference to the "accompanying dra-Wings, in which the ligure lisfa section taken lengthwise through my burner.

A represents a tubular section of relatively large diame ter compared with its length, suit ably secured to the 'furnace front 0r wall A.

is a piece of tubing having a iiared front end 3 and hinged to the section A at 4, Wi th 'tion b the ilared part 3 adapted to telescope with the end of 'the section A. The part 2 is adapted to turn upward on its hinges to allow inspection or" the interior of either of the parts A or 2 5 and thesel two parts are maintained in alinement when in operative posithe engagement ci the flared end 3 with t e stop' on section vA.

6 is an oil pipe disposed within the tube 2, 'angl open at both ends with its inner discharge end projecting about hal .h n inch beyond the end oi the nozzle 7 3 whic. latter is carried by the part 2 and is arranged inside the flared' portion 8. The outer end of the tube part 2 is open as is also the outer end of the oil pipe 6 the latter is here shown and provided with an u turned elbow 8 open to the atmosphere. T e pipe 6 is supported inside of the tube 2 by suitable means as the T '9 which has its central. branch extending through'an opening in the top of' the tube 2 "and is locked in place by a set-nut 10.

v7 The oil hopper il. screws lnto the Tand the oil iron! any suitable source o f supply 1s edfthrough the pipe i2 in suitable quantities into this hopper 1l The oilpipe arranged at slight incline downward andfor 55 ward with respect t0 the axis of the burner,

p ticles before they even leave the pipe.

so that the oil would naturally gravitate toward the furnace end of the pipe.

13 is an air blast nozzle or pipe arranged outside of the oil pipe and eccentric to the tubing 2 and adapted to discharge into the chamber in the tubing at a point forward of the rear end of the oil pipo 6. The result of this construction is that when compressed air o1-steam is let in 'through the nozzle 13 around the oil pipe 6, a powerful suction is created around the front end of the pipe 6. This naturally induces a current of air from the atmosphere through the pipe 6 and the flow of the oil is facilitated, and on being discharged into the mixing chamber A becomes thoroughly atomzed and mixed with such quantities of oxygen as to insure the most perfect combustion in the furnace` In actual practice in numerous instances where I have used this'burner, it is found that not only is an appreciable current of air induced through the oil pipe 6, as is apparent by simply placing the hand over the elbow S, ,but this induced current produces a swirling action in the pipe and breaks up the oil par- A certain quantity of air is also induced through the hopper l1. I am thus ena led to get a 4sufficient oil feed Without any pumping.

The contracted inner end 7 oi the tubo 2 brings the surrounding volume of air into intimate association with the oil wlllile the cnlar`ged tubular part A inclosesln hat I term the mixing chamber and gives ample time and room for erfect atomization; the discharged gases fIrlom the burner being ignited inside the furnace and producing a flame of considerable volume and great intensity.

The burner has little or no tendency to heat up and consequently it can be made of heavy tin or sheet iron, with the exception ol course of the oil pipe 6. It is manifest however that I can use any suitable material lo. the construction of my burner and the same may be :if any suitable size.

By havi ng the main burner portion hinged i liication and claims, is intended to include steam or any equivalent vaporizing medium. It is possible that various changes and modifications maybe made in the invention Without departing from 'the principle involved.

Having thus' described l claim and desire to secure,l 1s*- "f,

1. An `eil bummer eompising anw-oil pipe open atvbotli ends end h f g a'suitahle oil inlet between its ends,v an dir pi e surround' ing the oil lpipe extending paral el therewith and substantiallythefull lian th thereof, and inclosing'an annular space etween' i-t and the oil pipe, said air ,pi e'topen at its outer. endJ a tubular section o relatively larger .diameter than the airpipe -cpnneeted with the frontend of the latter and inclosin-g a mixing chamber, said air pipe and oil pipe' both discharging into this mixing cham er, said mixi u chamber open at its frontend, and means xdd'seharging air or steam underA pressure exterior to the oil pipe and into the space in-- closed between the air pipe and the oil pipe invention, what y Letters Batent air pi.

ducedp .pipe @Pen at air substantially nozzle of said air p mitting air under induce .-a vcurrent ,o

and at a point between the ends of the oil pipe and the air pipe andv in the direction of the forward end of the oil pipe.

2s 2. In an oil'burner, the combination of an e open at the ends7 provided with a renozzle portion at .its front end, an oil oth ends disposed Within the pipe and 4inclined slightly downward and rWard, said `oil pipe having its front end flush, and concentric With the ipe, said oil pipe having an ts ends, and means for adpressure into the air pipe to air :through the oil pipe. In testimony whereof I have hereunto set y hand :in presence of two :subscribing Witl inlet'llbetween i l. GEORGE LA RSEN.

Witnesses:

lGEORGE LA RsEN,

WILLIAM HOWARD DIcKiNsoN. 

